Annual Massachusetts rainfall, severe weather and climate data

Massachusetts Annual Rainfall and Climate Data, see below for individual cities

Massachusetts Average Annual Precipitation

Massachusetts city precipitation totals

City	Avg Annual Precip	Avg Annual Snow	Avg # days of Precip	Avg # thunderstorm days	Avg # hail days	Avg # severe thunderstorm watches per year	Avg # tornado watches per year	# of tornadoes reported in county, 1960-2010
Blue Hill	51.22	60.8	134	15	0	0	6	7
Boston	42.53	43.2	126	18	1	0	5	0
Worcester	49.05	69.1	133	23	1	0	8	24
Massachusetts Annual Precipitation Average - 47.88 inches, 14th wettest in U.S. Massachusetts Tornado Average - 3.0 per year - 35th most in the U.S. Largest reported Tornado in Massachusetts from 1950-2011, 6/9/1953 - 900 yards / .51 miles wide Date with highest number of reported Tornadoes in Masachusetts from 1950-2011, June 1st - 8 tornadoes Average time of occurrence of reported Tornadoes in Massachusetts from 1950-2011 - 3:29 pm Massachusetts Annual Lightning Density - 3.2 flashes per square mile - 36th highest in U.S. Record Driest year in Massachusetts from 1895-2012 - 1965, avg precipitation 28.73 inches Record Wettest year in Massachusetts from 1895-2012 - 2008, avg precipitation 62.19 inches

Massachusetts Precipitation Records

Driest location ranked by lowest annual average precipitation: Nantucket, southeastern Massachusetts, 37.43"

Wettest location ranked by highest annual average precipitation: Chester, southwestern Massachusetts, 61.65"

Snowiest location ranked by highest annual average snowfall: West Cunningham, west central Massachusetts, 85.0"

State precipitation maximum for 24 hours - Westfield, southwestern Massachusetts, 8/18-19/1955, 18.15"

State precipitation maximum for 1 year - New Salem, central Massachusetts, 1996, 76.49"

State snow maximum for 24 hours - Worcester, central Massachusetts, 3/31-4/1/1997, 33.0"

State snow maximum for 1 season - Monroe, northwestern Massachusetts, 1892, 1893, 162.0"

On 01/22/2005 a major winter snowstorm, nicknamed the "Blizzard of 2005", affected the Northeastern United States. More than one foot of snow covered much of southern New England in the storm's aftermath, with well over two feet in some areas of Massachusetts

Massachusetts receives about the same amount of rainfall each month and as a result, Massachusetts averages precipitation once every three days

Each winter, Boston averages 35 days with one inch or more of snow cover on the ground

Massachusetts temperature averages and extremes, Boston climate extremes/averages, precipitation and temperature data for all U.S. states and Top 10 U.S. climate extremes

Data sources: National Climatic Data Center, severe thunderstorm / tornado watch data period is 1999 - 2008, NOAA Storm Prediction Center, Tornado climate data - NOAA Storm Prediction Center
State lightning flash density average - 1997-2011, Vaisala